VERY FEW. While I agree with your comments on the timing, I disagree with your characterization of the game. I formations usually appear to have deep threat wide receivers because they are primarily running attacks that use two receivers in pattern for play action. The safeties primary responsibility is run blocking and they tend to defend the two WR's with press coverage.

This is why you see a team like Michigan or Ohio State get guys open behind the DB's, but completions as pretty as they are OTT are also very rare and hard to come by. You are incorrect if you believe that playing 9-12 yards doesn't keep everything underneith. One of the reason's John Elway was so adept at the 20-30 yard sideline patterns is because teams wouldn't allow him with his monster arm to go OTT. So he learned to pick teams apart underneath. San Marino did too.

Now it's not that you never see OTT play. When teams blitz, you get 1-1 coverage and that's when you can go OTT so long as the safeties are out of position. Unless you draw the CB's and safeties up deceptively, you are not going to get a receiver with even world class speed behind them.

Now you were also very correct in stating that BYU is very adept at peeling off the coverage so that TE's and Backs can get the ball underneath. Again, this is because BYU runs a lot of crossing patterns and chair routs. But simply streaking on down the line on fly patterns is not unusual for BYU either. It's just that when BYU does this, the entire underside (high % completions) becomes available. BYU doesn't lack a deep threat. If anything BYU is successful because it is a constant deep threat.

Most teams lay their corners off against spread and pro-set and R&S offenses and why? Because of speed and the desire to keep the play underneath. Ask a freak'n DB coach would ya. Ask a coach. My next sentence is not directed at YOU, but just in general. I'm done trying to explain the game to wannabe lawyers and girls.